/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// in_win.c -- windows 95 mouse and joystick code
// 02/21/97 JCB Added extended DirectInput code to support external controllers.

#include <dinput.h>
#include "quakedef.h"
#include "winquake.h"

#define DINPUT_BUFFERSIZE           16
#define iDirectInputCreate(a,b,c,d)	pDirectInputCreate(a,b,c,d)

HRESULT (WINAPI *pDirectInputCreate)(HINSTANCE hinst, DWORD dwVersion,
                                     LPDIRECTINPUT * lplpDirectInput, LPUNKNOWN punkOuter);

// mouse variables
cvar_t	m_filter = {"m_filter","0"};

int			mouse_buttons;
int			mouse_oldbuttonstate;
POINT		current_pos;
int			mouse_x, mouse_y, old_mouse_x, old_mouse_y, mx_accum, my_accum;

static qboolean	restore_spi;
static int		originalmouseparms[3], newmouseparms[3] = {0, 0, 1};

unsigned int uiWheelMessage;
qboolean	mouseactive;
qboolean		mouseinitialized;
static qboolean	mouseparmsvalid, mouseactivatetoggle;
static qboolean	mouseshowtoggle = 1;
static qboolean	dinput_acquired;

static unsigned int		mstate_di;

// joystick defines and variables
// where should defines be moved?
#define JOY_ABSOLUTE_AXIS	0x00000000		// control like a joystick
#define JOY_RELATIVE_AXIS	0x00000010		// control like a mouse, spinner, trackball
#define	JOY_MAX_AXES		6				// X, Y, Z, R, U, V
#define JOY_AXIS_X			0
#define JOY_AXIS_Y			1
#define JOY_AXIS_Z			2
#define JOY_AXIS_R			3
#define JOY_AXIS_U			4
#define JOY_AXIS_V			5

enum _ControlList
{
    AxisNada = 0, AxisForward, AxisLook, AxisSide, AxisTurn
};

DWORD	dwAxisFlags[JOY_MAX_AXES] =
{
    JOY_RETURNX, JOY_RETURNY, JOY_RETURNZ, JOY_RETURNR, JOY_RETURNU, JOY_RETURNV
};

DWORD	dwAxisMap[JOY_MAX_AXES];
DWORD	dwControlMap[JOY_MAX_AXES];
PDWORD	pdwRawValue[JOY_MAX_AXES];

// none of these cvars are saved over a session
// this means that advanced controller configuration needs to be executed
// each time.  this avoids any problems with getting back to a default usage
// or when changing from one controller to another.  this way at least something
// works.
cvar_t	in_joystick = {"joystick","0", true};
cvar_t	joy_name = {"joyname", "joystick"};
cvar_t	joy_advanced = {"joyadvanced", "0"};
cvar_t	joy_advaxisx = {"joyadvaxisx", "0"};
cvar_t	joy_advaxisy = {"joyadvaxisy", "0"};
cvar_t	joy_advaxisz = {"joyadvaxisz", "0"};
cvar_t	joy_advaxisr = {"joyadvaxisr", "0"};
cvar_t	joy_advaxisu = {"joyadvaxisu", "0"};
cvar_t	joy_advaxisv = {"joyadvaxisv", "0"};
cvar_t	joy_forwardthreshold = {"joyforwardthreshold", "0.15"};
cvar_t	joy_sidethreshold = {"joysidethreshold", "0.15"};
cvar_t	joy_pitchthreshold = {"joypitchthreshold", "0.15"};
cvar_t	joy_yawthreshold = {"joyyawthreshold", "0.15"};
cvar_t	joy_forwardsensitivity = {"joyforwardsensitivity", "-1.0"};
cvar_t	joy_sidesensitivity = {"joysidesensitivity", "-1.0"};
cvar_t	joy_pitchsensitivity = {"joypitchsensitivity", "1.0"};
cvar_t	joy_yawsensitivity = {"joyyawsensitivity", "-1.0"};
cvar_t	joy_wwhack1 = {"joywwhack1", "0.0"};
cvar_t	joy_wwhack2 = {"joywwhack2", "0.0"};

qboolean	joy_avail, joy_advancedinit, joy_haspov;
DWORD		joy_oldbuttonstate, joy_oldpovstate;

int			joy_id;
DWORD		joy_flags;
DWORD		joy_numbuttons;

static LPDIRECTINPUT		g_pdi;
static LPDIRECTINPUTDEVICE	g_pMouse;

static JOYINFOEX	ji;

static HINSTANCE hInstDI;

static qboolean	dinput;

typedef struct MYDATA
{
    LONG  lX;                   // X axis goes here
    LONG  lY;                   // Y axis goes here
    LONG  lZ;                   // Z axis goes here
    BYTE  bButtonA;             // One button goes here
    BYTE  bButtonB;             // Another button goes here
    BYTE  bButtonC;             // Another button goes here
    BYTE  bButtonD;             // Another button goes here
} MYDATA;

static DIOBJECTDATAFORMAT rgodf[] =
{
    { &GUID_XAxis,    FIELD_OFFSET(MYDATA, lX),       DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
    { &GUID_YAxis,    FIELD_OFFSET(MYDATA, lY),       DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
    { &GUID_ZAxis,    FIELD_OFFSET(MYDATA, lZ),       0x80000000 | DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
    { 0,              FIELD_OFFSET(MYDATA, bButtonA), DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
    { 0,              FIELD_OFFSET(MYDATA, bButtonB), DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
    { 0,              FIELD_OFFSET(MYDATA, bButtonC), 0x80000000 | DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
    { 0,              FIELD_OFFSET(MYDATA, bButtonD), 0x80000000 | DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
};

#define NUM_OBJECTS (sizeof(rgodf) / sizeof(rgodf[0]))

static DIDATAFORMAT	df =
{
    sizeof(DIDATAFORMAT),       // this structure
    sizeof(DIOBJECTDATAFORMAT), // size of object data format
    DIDF_RELAXIS,               // absolute axis coordinates
    sizeof(MYDATA),             // device data size
    NUM_OBJECTS,                // number of objects
    rgodf,                      // and here they are
};

// forward-referenced functions
void IN_StartupJoystick (void);
void Joy_AdvancedUpdate_f (void);
void IN_JoyMove (usercmd_t *cmd);


/*
===========
Force_CenterView_f
===========
*/
void Force_CenterView_f (void)
{
    cl.viewangles[PITCH] = 0;
}


/*
===========
IN_UpdateClipCursor
===========
*/
void IN_UpdateClipCursor (void)
{

    if (mouseinitialized && mouseactive && !dinput)
    {
        ClipCursor (&window_rect);
    }
}


/*
===========
IN_ShowMouse
===========
*/
void IN_ShowMouse (void)
{

    if (!mouseshowtoggle)
    {
        ShowCursor (TRUE);
        mouseshowtoggle = 1;
    }
}


/*
===========
IN_HideMouse
===========
*/
void IN_HideMouse (void)
{

    if (mouseshowtoggle)
    {
        ShowCursor (FALSE);
        mouseshowtoggle = 0;
    }
}


/*
===========
IN_ActivateMouse
===========
*/
void IN_ActivateMouse (void)
{

    mouseactivatetoggle = true;

    if (mouseinitialized)
    {
        if (dinput)
        {
            if (g_pMouse)
            {
                if (!dinput_acquired)
                {
                    IDirectInputDevice_Acquire(g_pMouse);
                    dinput_acquired = true;
                }
            }
            else
            {
                return;
            }
        }
        else
        {
            if (mouseparmsvalid)
                restore_spi = SystemParametersInfo (SPI_SETMOUSE, 0, newmouseparms, 0);

            SetCursorPos (window_center_x, window_center_y);
            SetCapture (mainwindow);
            ClipCursor (&window_rect);
        }

        mouseactive = true;
    }
}


/*
===========
IN_SetQuakeMouseState
===========
*/
void IN_SetQuakeMouseState (void)
{
    if (mouseactivatetoggle)
        IN_ActivateMouse ();
}


/*
===========
IN_DeactivateMouse
===========
*/
void IN_DeactivateMouse (void)
{

    mouseactivatetoggle = false;

    if (mouseinitialized)
    {
        if (dinput)
        {
            if (g_pMouse)
            {
                if (dinput_acquired)
                {
                    IDirectInputDevice_Unacquire(g_pMouse);
                    dinput_acquired = false;
                }
            }
        }
        else
        {
            if (restore_spi)
                SystemParametersInfo (SPI_SETMOUSE, 0, originalmouseparms, 0);

            ClipCursor (NULL);
            ReleaseCapture ();
        }

        mouseactive = false;
    }
}


/*
===========
IN_RestoreOriginalMouseState
===========
*/
void IN_RestoreOriginalMouseState (void)
{
    if (mouseactivatetoggle)
    {
        IN_DeactivateMouse ();
        mouseactivatetoggle = true;
    }

// try to redraw the cursor so it gets reinitialized, because sometimes it
// has garbage after the mode switch
    ShowCursor (TRUE);
    ShowCursor (FALSE);
}


/*
===========
IN_InitDInput
===========
*/
qboolean IN_InitDInput (void)
{
    HRESULT		hr;
    DIPROPDWORD	dipdw =
    {
        {
            sizeof(DIPROPDWORD),        // diph.dwSize
            sizeof(DIPROPHEADER),       // diph.dwHeaderSize
            0,                          // diph.dwObj
            DIPH_DEVICE,                // diph.dwHow
        },
        DINPUT_BUFFERSIZE,              // dwData
    };

    if (!hInstDI)
    {
        hInstDI = LoadLibrary("dinput.dll");

        if (hInstDI == NULL)
        {
            Con_SafePrintf ("Couldn't load dinput.dll\n");
            return false;
        }
    }

    if (!pDirectInputCreate)
    {
        pDirectInputCreate = (void *)GetProcAddress(hInstDI,"DirectInputCreateA");

        if (!pDirectInputCreate)
        {
            Con_SafePrintf ("Couldn't get DI proc addr\n");
            return false;
        }
    }

// register with DirectInput and get an IDirectInput to play with.
    hr = iDirectInputCreate(global_hInstance, DIRECTINPUT_VERSION, &g_pdi, NULL);

    if (FAILED(hr))
    {
        return false;
    }

// obtain an interface to the system mouse device.
    hr = IDirectInput_CreateDevice(g_pdi, &GUID_SysMouse, &g_pMouse, NULL);

    if (FAILED(hr))
    {
        Con_SafePrintf ("Couldn't open DI mouse device\n");
        return false;
    }

// set the data format to "mouse format".
    hr = IDirectInputDevice_SetDataFormat(g_pMouse, &df);

    if (FAILED(hr))
    {
        Con_SafePrintf ("Couldn't set DI mouse format\n");
        return false;
    }

// set the cooperativity level.
    hr = IDirectInputDevice_SetCooperativeLevel(g_pMouse, mainwindow,
            DISCL_EXCLUSIVE | DISCL_FOREGROUND);

    if (FAILED(hr))
    {
        Con_SafePrintf ("Couldn't set DI coop level\n");
        return false;
    }


// set the buffer size to DINPUT_BUFFERSIZE elements.
// the buffer size is a DWORD property associated with the device
    hr = IDirectInputDevice_SetProperty(g_pMouse, DIPROP_BUFFERSIZE, &dipdw.diph);

    if (FAILED(hr))
    {
        Con_SafePrintf ("Couldn't set DI buffersize\n");
        return false;
    }

    return true;
}


/*
===========
IN_StartupMouse
===========
*/
void IN_StartupMouse (void)
{
    if ( COM_CheckParm ("-nomouse") ) return;

    mouseinitialized = true;

    if (COM_CheckParm ("-dinput"))
    {
        dinput = IN_InitDInput ();

        if (dinput)
        {
            Con_SafePrintf ("DirectInput initialized\n");
        }
        else
        {
            Con_SafePrintf ("DirectInput not initialized\n");
        }
    }

    if (!dinput)
    {
        mouseparmsvalid = SystemParametersInfo (SPI_GETMOUSE, 0, originalmouseparms, 0);

        if (mouseparmsvalid)
        {
            if ( COM_CheckParm ("-noforcemspd") )
                newmouseparms[2] = originalmouseparms[2];

            if ( COM_CheckParm ("-noforcemaccel") )
            {
                newmouseparms[0] = originalmouseparms[0];
                newmouseparms[1] = originalmouseparms[1];
            }

            if ( COM_CheckParm ("-noforcemparms") )
            {
                newmouseparms[0] = originalmouseparms[0];
                newmouseparms[1] = originalmouseparms[1];
                newmouseparms[2] = originalmouseparms[2];
            }
        }
    }
    mouse_buttons = 3;

// if a fullscreen video mode was set before the mouse was initialized,
// set the mouse state appropriately
    if (mouseactivatetoggle)
    {
        IN_ActivateMouse ();
    }
}


/*
===========
IN_Init
===========
*/
void IN_Init (void)
{
    // mouse variables
    Cvar_RegisterVariable (&m_filter, NULL);

    // joystick variables
    Cvar_RegisterVariable (&in_joystick, NULL);
    Cvar_RegisterVariable (&joy_name, NULL);
    Cvar_RegisterVariable (&joy_advanced, NULL);
    Cvar_RegisterVariable (&joy_advaxisx, NULL);
    Cvar_RegisterVariable (&joy_advaxisy, NULL);
    Cvar_RegisterVariable (&joy_advaxisz, NULL);
    Cvar_RegisterVariable (&joy_advaxisr, NULL);
    Cvar_RegisterVariable (&joy_advaxisu, NULL);
    Cvar_RegisterVariable (&joy_advaxisv, NULL);
    Cvar_RegisterVariable (&joy_forwardthreshold, NULL);
    Cvar_RegisterVariable (&joy_sidethreshold, NULL);
    Cvar_RegisterVariable (&joy_pitchthreshold, NULL);
    Cvar_RegisterVariable (&joy_yawthreshold, NULL);
    Cvar_RegisterVariable (&joy_forwardsensitivity, NULL);
    Cvar_RegisterVariable (&joy_sidesensitivity, NULL);
    Cvar_RegisterVariable (&joy_pitchsensitivity, NULL);
    Cvar_RegisterVariable (&joy_yawsensitivity, NULL);
    Cvar_RegisterVariable (&joy_wwhack1, NULL);
    Cvar_RegisterVariable (&joy_wwhack2, NULL);

    Cmd_AddCommand ("force_centerview", Force_CenterView_f);
    Cmd_AddCommand ("joyadvancedupdate", Joy_AdvancedUpdate_f);

    uiWheelMessage = RegisterWindowMessage ( "MSWHEEL_ROLLMSG" );

    IN_StartupMouse ();
    IN_StartupJoystick ();
}

/*
===========
IN_Shutdown
===========
*/
void IN_Shutdown (void)
{

    IN_DeactivateMouse ();
    IN_ShowMouse ();

    if (g_pMouse)
    {
        IDirectInputDevice_Release(g_pMouse);
        g_pMouse = NULL;
    }

    if (g_pdi)
    {
        IDirectInput_Release(g_pdi);
        g_pdi = NULL;
    }
}


/*
===========
IN_MouseEvent
===========
*/
void IN_MouseEvent (int mstate)
{
    int	i;

    if (mouseactive && !dinput)
    {
        // perform button actions
        for (i=0 ; i<mouse_buttons ; i++)
        {
            if ( (mstate & (1<<i)) &&
                    !(mouse_oldbuttonstate & (1<<i)) )
            {
                Key_Event (K_MOUSE1 + i, true);
            }

            if ( !(mstate & (1<<i)) &&
                    (mouse_oldbuttonstate & (1<<i)) )
            {
                Key_Event (K_MOUSE1 + i, false);
            }
        }

        mouse_oldbuttonstate = mstate;
    }
}


/*
===========
IN_MouseMove
===========
*/
void IN_MouseMove (usercmd_t *cmd)
{
    int					mx, my;
    int					i;
    DIDEVICEOBJECTDATA	od;
    DWORD				dwElements;
    HRESULT				hr;

    if (!mouseactive) return;

    if (dinput)
    {
        mx = 0;
        my = 0;

        for (;;)
        {
            dwElements = 1;

            hr = IDirectInputDevice_GetDeviceData(g_pMouse, sizeof(DIDEVICEOBJECTDATA), &od, &dwElements, 0);

            if ((hr == DIERR_INPUTLOST) || (hr == DIERR_NOTACQUIRED))
            {
                dinput_acquired = true;
                IDirectInputDevice_Acquire(g_pMouse);
                break;
            }

            /* Unable to read data or no data available */
            if (FAILED(hr) || dwElements == 0)
            {
                break;
            }

            /* Look at the element to see what happened */

            switch (od.dwOfs)
            {
            case DIMOFS_X:
                mx += od.dwData;
                break;

            case DIMOFS_Y:
                my += od.dwData;
                break;

            case DIMOFS_BUTTON0:
                if (od.dwData & 0x80)
                    mstate_di |= 1;
                else
                    mstate_di &= ~1;
                break;

            case DIMOFS_BUTTON1:
                if (od.dwData & 0x80)
                    mstate_di |= (1<<1);
                else
                    mstate_di &= ~(1<<1);
                break;

            case DIMOFS_BUTTON2:
                if (od.dwData & 0x80)
                    mstate_di |= (1<<2);
                else
                    mstate_di &= ~(1<<2);
                break;

            default:
                break;
            }
        }

        // perform button actions
        for (i=0 ; i<mouse_buttons ; i++)
        {
            if ((mstate_di & (1<<i)) && !(mouse_oldbuttonstate & (1<<i)))
            {
                Key_Event (K_MOUSE1 + i, true);
            }

            if (!(mstate_di & (1<<i)) && (mouse_oldbuttonstate & (1<<i)))
            {
                Key_Event (K_MOUSE1 + i, false);
            }
        }
        mouse_oldbuttonstate = mstate_di;
    }
    else
    {
        GetCursorPos (&current_pos);
        mx = current_pos.x - window_center_x + mx_accum;
        my = current_pos.y - window_center_y + my_accum;
        mx_accum = 0;
        my_accum = 0;
    }

    if (m_filter.value)
    {
        mouse_x = (mx + old_mouse_x) * 0.5;
        mouse_y = (my + old_mouse_y) * 0.5;
    }
    else
    {
        mouse_x = mx;
        mouse_y = my;
    }
    old_mouse_x = mx;
    old_mouse_y = my;

    mouse_x *= sensitivity.value;
    mouse_y *= sensitivity.value;

// add mouse X/Y movement to cmd
    if ( (in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1) ))
        cmd->sidemove += m_side.value * mouse_x;
    else
        cl.viewangles[YAW] -= m_yaw.value * mouse_x;

    if (in_mlook.state & 1)
    {
        V_StopPitchDrift ();
    }

    if ( (in_mlook.state & 1) && !(in_strafe.state & 1))
    {
        cl.viewangles[PITCH] += m_pitch.value * mouse_y;
        if (cl.viewangles[PITCH] > 80)
            cl.viewangles[PITCH] = 80;
        if (cl.viewangles[PITCH] < -70)
            cl.viewangles[PITCH] = -70;
    }
    else
    {
        if ((in_strafe.state & 1) && noclip_anglehack)
            cmd->upmove -= m_forward.value * mouse_y;
        else
            cmd->forwardmove -= m_forward.value * mouse_y;
    }

// if the mouse has moved, force it to the center, so there's room to move
    if (mx || my)
    {
        SetCursorPos (window_center_x, window_center_y);
    }
}


/*
===========
IN_Move
===========
*/
void IN_Move (usercmd_t *cmd)
{

    if (ActiveApp && !Minimized)
    {
        IN_MouseMove (cmd);
        IN_JoyMove (cmd);
    }
}


/*
===========
IN_Accumulate
===========
*/
void IN_Accumulate (void)
{
    if (mouseactive)
    {
        if (!dinput)
        {
            GetCursorPos (&current_pos);

            mx_accum += current_pos.x - window_center_x;
            my_accum += current_pos.y - window_center_y;

            // force the mouse to the center, so there's room to move
            SetCursorPos (window_center_x, window_center_y);
        }
    }
}


/*
===================
IN_ClearStates
===================
*/
void IN_ClearStates (void)
{

    if (mouseactive)
    {
        mx_accum = 0;
        my_accum = 0;
        mouse_oldbuttonstate = 0;
    }
}


/*
===============
IN_StartupJoystick
===============
*/
void IN_StartupJoystick (void)
{
    int			numdevs;
    JOYCAPS		jc;
    MMRESULT	mmr;

    // assume no joystick
    joy_avail = false;

    // abort startup if user requests no joystick
    if ( COM_CheckParm ("-nojoy") )
        return;

    // verify joystick driver is present
    if ((numdevs = joyGetNumDevs ()) == 0)
    {
        Con_Printf ("\njoystick not found -- driver not present\n\n");
        return;
    }

    // cycle through the joystick ids for the first valid one
    for (joy_id=0 ; joy_id<numdevs ; joy_id++)
    {
        memset (&ji, 0, sizeof(ji));
        ji.dwSize = sizeof(ji);
        ji.dwFlags = JOY_RETURNCENTERED;

        if ((mmr = joyGetPosEx (joy_id, &ji)) == JOYERR_NOERROR) break;
    }

    // abort startup if we didn't find a valid joystick
    if (mmr != JOYERR_NOERROR)
    {
        Con_Printf ("\njoystick not found -- no valid joysticks (%x)\n\n", mmr);
        return;
    }

    // get the capabilities of the selected joystick
    // abort startup if command fails
    memset (&jc, 0, sizeof(jc));

    if ((mmr = joyGetDevCaps (joy_id, &jc, sizeof(jc))) != JOYERR_NOERROR)
    {
        Con_Printf ("\njoystick not found -- invalid joystick capabilities (%x)\n\n", mmr);
        return;
    }

    // save the joystick's number of buttons and POV status
    joy_numbuttons = jc.wNumButtons;
    joy_haspov = jc.wCaps & JOYCAPS_HASPOV;

    // old button and POV states default to no buttons pressed
    joy_oldbuttonstate = joy_oldpovstate = 0;

    // mark the joystick as available and advanced initialization not completed
    // this is needed as cvars are not available during initialization
    joy_avail = true;
    joy_advancedinit = false;

    Con_Printf ("\njoystick detected\n\n");
}


/*
===========
RawValuePointer
===========
*/
PDWORD RawValuePointer (int axis)
{
    switch (axis)
    {
    case JOY_AXIS_X:
        return &ji.dwXpos;
    case JOY_AXIS_Y:
        return &ji.dwYpos;
    case JOY_AXIS_Z:
        return &ji.dwZpos;
    case JOY_AXIS_R:
        return &ji.dwRpos;
    case JOY_AXIS_U:
        return &ji.dwUpos;
    case JOY_AXIS_V:
        return &ji.dwVpos;
    }
    return NULL;
}


/*
===========
Joy_AdvancedUpdate_f
===========
*/
void Joy_AdvancedUpdate_f (void)
{

    // called once by IN_ReadJoystick and by user whenever an update is needed
    // cvars are now available
    int	i;
    DWORD dwTemp;

    // initialize all the maps
    for (i = 0; i < JOY_MAX_AXES; i++)
    {
        dwAxisMap[i] = AxisNada;
        dwControlMap[i] = JOY_ABSOLUTE_AXIS;
        pdwRawValue[i] = RawValuePointer(i);
    }

    if( joy_advanced.value == 0.0)
    {
        // default joystick initialization
        // 2 axes only with joystick control
        dwAxisMap[JOY_AXIS_X] = AxisTurn;
        // dwControlMap[JOY_AXIS_X] = JOY_ABSOLUTE_AXIS;
        dwAxisMap[JOY_AXIS_Y] = AxisForward;
        // dwControlMap[JOY_AXIS_Y] = JOY_ABSOLUTE_AXIS;
    }
    else
    {
        if (Q_strcmp (joy_name.string, "joystick") != 0)
        {
            // notify user of advanced controller
            Con_Printf ("\n%s configured\n\n", joy_name.string);
        }

        // advanced initialization here
        // data supplied by user via joy_axisn cvars
        dwTemp = (DWORD) joy_advaxisx.value;
        dwAxisMap[JOY_AXIS_X] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_X] = dwTemp & JOY_RELATIVE_AXIS;
        dwTemp = (DWORD) joy_advaxisy.value;
        dwAxisMap[JOY_AXIS_Y] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_Y] = dwTemp & JOY_RELATIVE_AXIS;
        dwTemp = (DWORD) joy_advaxisz.value;
        dwAxisMap[JOY_AXIS_Z] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_Z] = dwTemp & JOY_RELATIVE_AXIS;
        dwTemp = (DWORD) joy_advaxisr.value;
        dwAxisMap[JOY_AXIS_R] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_R] = dwTemp & JOY_RELATIVE_AXIS;
        dwTemp = (DWORD) joy_advaxisu.value;
        dwAxisMap[JOY_AXIS_U] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_U] = dwTemp & JOY_RELATIVE_AXIS;
        dwTemp = (DWORD) joy_advaxisv.value;
        dwAxisMap[JOY_AXIS_V] = dwTemp & 0x0000000f;
        dwControlMap[JOY_AXIS_V] = dwTemp & JOY_RELATIVE_AXIS;
    }

    // compute the axes to collect from DirectInput
    joy_flags = JOY_RETURNCENTERED | JOY_RETURNBUTTONS | JOY_RETURNPOV;
    for (i = 0; i < JOY_MAX_AXES; i++)
    {
        if (dwAxisMap[i] != AxisNada)
        {
            joy_flags |= dwAxisFlags[i];
        }
    }
}


/*
===========
IN_Commands
===========
*/
void IN_Commands (void)
{
    int		i, key_index;
    DWORD	buttonstate, povstate;

    if (!joy_avail)
    {
        return;
    }


    // loop through the joystick buttons
    // key a joystick event or auxillary event for higher number buttons for each state change
    buttonstate = ji.dwButtons;
    for (i=0 ; i < (int) joy_numbuttons ; i++)
    {
        if ( (buttonstate & (1<<i)) && !(joy_oldbuttonstate & (1<<i)) )
        {
            key_index = (i < 4) ? K_JOY1 : K_AUX1;
            Key_Event (key_index + i, true);
        }

        if ( !(buttonstate & (1<<i)) && (joy_oldbuttonstate & (1<<i)) )
        {
            key_index = (i < 4) ? K_JOY1 : K_AUX1;
            Key_Event (key_index + i, false);
        }
    }
    joy_oldbuttonstate = buttonstate;

    if (joy_haspov)
    {
        // convert POV information into 4 bits of state information
        // this avoids any potential problems related to moving from one
        // direction to another without going through the center position
        povstate = 0;
        if(ji.dwPOV != JOY_POVCENTERED)
        {
            if (ji.dwPOV == JOY_POVFORWARD)
                povstate |= 0x01;
            if (ji.dwPOV == JOY_POVRIGHT)
                povstate |= 0x02;
            if (ji.dwPOV == JOY_POVBACKWARD)
                povstate |= 0x04;
            if (ji.dwPOV == JOY_POVLEFT)
                povstate |= 0x08;
        }
        // determine which bits have changed and key an auxillary event for each change
        for (i=0 ; i < 4 ; i++)
        {
            if ( (povstate & (1<<i)) && !(joy_oldpovstate & (1<<i)) )
            {
                Key_Event (K_AUX29 + i, true);
            }

            if ( !(povstate & (1<<i)) && (joy_oldpovstate & (1<<i)) )
            {
                Key_Event (K_AUX29 + i, false);
            }
        }
        joy_oldpovstate = povstate;
    }
}


/*
===============
IN_ReadJoystick
===============
*/
qboolean IN_ReadJoystick (void)
{

    memset (&ji, 0, sizeof(ji));
    ji.dwSize = sizeof(ji);
    ji.dwFlags = joy_flags;

    if (joyGetPosEx (joy_id, &ji) == JOYERR_NOERROR)
    {
        // this is a hack -- there is a bug in the Logitech WingMan Warrior DirectInput Driver
        // rather than having 32768 be the zero point, they have the zero point at 32668
        // go figure -- anyway, now we get the full resolution out of the device
        if (joy_wwhack1.value != 0.0)
        {
            ji.dwUpos += 100;
        }
        return true;
    }
    else
    {
        // read error occurred
        // turning off the joystick seems too harsh for 1 read error,
        // but what should be done?
        return false;
    }
}


/*
===========
IN_JoyMove
===========
*/
void IN_JoyMove (usercmd_t *cmd)
{
    float	speed, aspeed;
    float	fAxisValue, fTemp;
    int		i;

    // complete initialization if first time in
    // this is needed as cvars are not available at initialization time
    if( joy_advancedinit != true )
    {
        Joy_AdvancedUpdate_f();
        joy_advancedinit = true;
    }

    // verify joystick is available and that the user wants to use it
    if (!joy_avail || !in_joystick.value)
    {
        return;
    }

    // collect the joystick data, if possible
    if (IN_ReadJoystick () != true)
    {
        return;
    }

    if (in_speed.state & 1)
        speed = cl_movespeedkey.value;
    else
        speed = 1;
    aspeed = speed * host_frametime;

    // loop through the axes
    for (i = 0; i < JOY_MAX_AXES; i++)
    {
        // get the floating point zero-centered, potentially-inverted data for the current axis
        fAxisValue = (float) *pdwRawValue[i];
        // move centerpoint to zero
        fAxisValue -= 32768.0;

        if (joy_wwhack2.value != 0.0)
        {
            if (dwAxisMap[i] == AxisTurn)
            {
                // this is a special formula for the Logitech WingMan Warrior
                // y=ax^b; where a = 300 and b = 1.3
                // also x values are in increments of 800 (so this is factored out)
                // then bounds check result to level out excessively high spin rates
                fTemp = 300.0 * pow(abs(fAxisValue) / 800.0, 1.3);
                if (fTemp > 14000.0)
                    fTemp = 14000.0;
                // restore direction information
                fAxisValue = (fAxisValue > 0.0) ? fTemp : -fTemp;
            }
        }

        // convert range from -32768..32767 to -1..1
        fAxisValue /= 32768.0;

        switch (dwAxisMap[i])
        {
        case AxisForward:
            if ((joy_advanced.value == 0.0) && (in_mlook.state & 1))
            {
                // user wants forward control to become look control
                if (fabs(fAxisValue) > joy_pitchthreshold.value)
                {
                    // if mouse invert is on, invert the joystick pitch value
                    // only absolute control support here (joy_advanced is false)
                    if (m_pitch.value < 0.0)
                    {
                        cl.viewangles[PITCH] -= (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
                    }
                    else
                    {
                        cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
                    }
                    V_StopPitchDrift();
                }
                else
                {
                    // no pitch movement
                    // disable pitch return-to-center unless requested by user
                    // *** this code can be removed when the lookspring bug is fixed
                    // *** the bug always has the lookspring feature on
                    if(lookspring.value == 0.0)
                        V_StopPitchDrift();
                }
            }
            else
            {
                // user wants forward control to be forward control
                if (fabs(fAxisValue) > joy_forwardthreshold.value)
                {
                    cmd->forwardmove += (fAxisValue * joy_forwardsensitivity.value) * speed * cl_forwardspeed.value;
                }
            }
            break;

        case AxisSide:
            if (fabs(fAxisValue) > joy_sidethreshold.value)
            {
                cmd->sidemove += (fAxisValue * joy_sidesensitivity.value) * speed * cl_sidespeed.value;
            }
            break;

        case AxisTurn:
            if ((in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1)))
            {
                // user wants turn control to become side control
                if (fabs(fAxisValue) > joy_sidethreshold.value)
                {
                    cmd->sidemove -= (fAxisValue * joy_sidesensitivity.value) * speed * cl_sidespeed.value;
                }
            }
            else
            {
                // user wants turn control to be turn control
                if (fabs(fAxisValue) > joy_yawthreshold.value)
                {
                    if(dwControlMap[i] == JOY_ABSOLUTE_AXIS)
                    {
                        cl.viewangles[YAW] += (fAxisValue * joy_yawsensitivity.value) * aspeed * cl_yawspeed.value;
                    }
                    else
                    {
                        cl.viewangles[YAW] += (fAxisValue * joy_yawsensitivity.value) * speed * 180.0;
                    }

                }
            }
            break;

        case AxisLook:
            if (in_mlook.state & 1)
            {
                if (fabs(fAxisValue) > joy_pitchthreshold.value)
                {
                    // pitch movement detected and pitch movement desired by user
                    if(dwControlMap[i] == JOY_ABSOLUTE_AXIS)
                    {
                        cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
                    }
                    else
                    {
                        cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * speed * 180.0;
                    }
                    V_StopPitchDrift();
                }
                else
                {
                    // no pitch movement
                    // disable pitch return-to-center unless requested by user
                    // *** this code can be removed when the lookspring bug is fixed
                    // *** the bug always has the lookspring feature on
                    if(lookspring.value == 0.0)
                        V_StopPitchDrift();
                }
            }
            break;

        default:
            break;
        }
    }

    // bounds check pitch
    if (cl.viewangles[PITCH] > 80.0)
        cl.viewangles[PITCH] = 80.0;
    if (cl.viewangles[PITCH] < -70.0)
        cl.viewangles[PITCH] = -70.0;
}
